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Durham, NH's Premier Insulation Company

“Colonial came out to give me a quote on a job. They quickly identified that they would not be the best provider for the work I needed (due to reasons beyond their control), and spent some time discussing with me other options instead. I really appreciate the professionalism and care shown in them immediately saying “there’s a better option for you then our product for this”, instead of trying to sell me a worse solution just to get a job. Thank you, and these guys will be my first call in the future if needed.”

Eric H. 

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Durham, NH's top rated insulation company

Do You Need An Insulation Company in Durham, NH? Let Colonial Insulation Do The Work!

  • Eco-Friendly Cleaning Process
  • Improve Curb Appeal
  • Make The Neighbors Jealous

Experience The Best Insulation Company Durham, NH Has To Offer. Why is Colonial Insulation The Best Insulation Company Solution?

  • Spray foam, cellulose, fiberglass, mineral wool
  • Industry Leaders
  • Fully Certified
  • Save Energy & Reduce Cost


We have 15+ years of collective knowledge and completed 10,000+ jobs.


All of our installers are carefully selected to be the best in the industry.


We provide warmth and safety throughout the New England area.


Our insulation will serve you for many, many years to come.

Residential Insulation Company

Insulation is a material that’s used to deaden or resist the flow of heat. It slows down this transfer of energy from one area to another so it will maintain a lower temperature for a longer period of time. Insulation can also be used to reduce noise, as well as provide structural support.

There are many reasons why you should be insulating your home.  The insulation in your walls helps to reduce the transfer of heat in the wintertime and reduces cold drafts during the summer seasons. Residential insulation can save homeowners lots of money on their utility bills by keeping out hot or cold air from outside. This can keep your home more energy efficient and help keep heating and cooling costs down. Insects and rodents will often try to move into residential properties, and insulation helps to keep them out. There are multiple ways that insulation can help you and your family stay safe in your home. Insulation is very important for residential properties because homeowners should be doing everything they can to protect their homes. Residential insulation is an inexpensive way for homeowners to help reduce costs, and it is also a great way to increase the value of your home.

If you’re thinking of updating your home to save on future bills, consider insulation as one option. They aren’t the only type available, but they are certainly one of the most popular types and for good reason. Colonial Insulation are here to assist you with your every residential insulation need.

Highly recommended!! They installed insulation throughout my 100+ year old home. They were professional, friendly, and did the job right! Excellent service!! My husband and I couldn’t be happier!


Commercial Insulation Company

Commercial insulation is essential for commercial/industrial commercial buildings, especially in colder climates. Commercial insulation greatly reduces heating costs by preventing heat loss through the roof, walls and other surfaces that are exposed to the interior or exterior of commercial buildings.

Commercial buildings are different from residential homes in that people are constantly flowing into and out of commercial buildings. This means commercial spaces experience heavy traffic almost all day long, which can be hard on commercial space HVAC systems. While commercial properties will always have to deal with environmental fluctuations, having insulation in place can help minimize inconsistencies in commercial space temperatures. Insulating commercial spaces can help commercial property owners save money on things like heat and cool, as commercial space insulation will allow commercial HVAC systems to work less. This is because commercial insulation materials essentially act as buffers between the interior of the commercial building and the outdoor environment; they trap warm air in commercial spaces during the winter and keep commercial spaces cool during the summer.

If you’re thinking of updating your business to save on future bills, consider insulation as one option. They aren’t the only type available, but they are certainly one of the most popular types, and for good reason. Colonial Insulation are here to assist you with your every commercial insulation need.

“We are glad we decided to go with the foam insulation. We now have zero drafts in the rooms we had done and will have more rooms to come. All the people that we delt with were very helpful and courteous. We saw a big saving in our heating bill right away. We would recommend Colonial Green.”


Professional Insulation Company In Durham, NH

Hiring a professional commercial and residential insulation company is extremely important when it comes to ensuring your home or business stays warm in the winter and cooler during the summer. This not only benefits you in the short term but also benefits your wallet in a long-term perspective.  A professional commercial and residential insulation company will help you determine which type of insulation will be most beneficial for your home or business. When it comes to commercial and residential insulation, hiring a professional insulation company benefits your home or business in many ways. A professional will not only ensure the job is done correctly, but also provide upfront pricing and bring any required equipment with them. They may even offer some benefits that homeowners simply cannot get on their own like warranties for materials or workmanship. With benefits like these, it is easy to see that hiring a professional insulation company will benefit your home or business.

While some business owners and homeowners may assume they can do insulation themselves, it is important to note that the dangers of doing so are great. For example, if improperly installed or used, fiberglass insulation can irritate skin, eyes and lungs. Toxic chemicals could be present within the materials affecting delicate systems like respiratory health. And without proper safety equipment in place business owners and homeowners can face serious falls or deadly fires. With that being said, it may be best to hire a professional insulation company to manage residential and commercial insulation needs. If you’re thinking of updating your business or home to save on future bills, consider insulation as one option. They aren’t the only type available, but they are certainly one of the most popular types, and for good reason. Colonial Insulation are here to assist you with your commercial and residential insulation needs.

“I ordered spray foam for a property I recently purchased the job was done on time with excellent results. I am very satisfied with the professionalism in this company’s work and customer service. I will definitely use them on future properties I purchase.”


Insulation Company Near Me

Insulation is an important part of any home or business as it protects its inhabitants from the harsh temperatures. There are different types of insulation, and it is important to know which type you should use for your house or building. Typically the more insulation you have, the better and more efficient your building will be. Insulation is a very important aspect of making an environment more comfortable and energy efficient. It is also beneficial financially as it helps to reduce the amount of energy needed to heat and cool a residence or commercial indoor space. This then lowers the amount of money spent on energy bills. The cost of insulation can make it seem like a large upfront expense; however, it is an investment that pays for itself with lower bills in the future. It has also been shown to make houses and businesses more marketable when trying to sell due to its increased value and features. Another benefit of increased insulation is comfort. It can make a resident or commercial business feel more comfortable and relaxed.

Insulation in homes and businesses are not only beneficial to the resident of/or business owner, but also to an aspect that goes beyond this. A new study done has shown that energy efficiency measures such as insulation can help reduce greenhouse gas emissions. This fact is especially important, as making homes and businesses more energy efficient can be beneficial for the environment. It is now easier than ever to insulate a resident or commercial building as well as to install other energy efficient measures. As a professional commercial and residential “insulation company near me”, Colonial Insulation will save your home as well as your business a considerable amount of time and money. If you have been searching for a commercial and residential “insulation company near me”, then contact us today for a free insulation estimate.

“Just got blown in insulation in my garage, and these guys were great! Cleaned up their mess. They were cool. Thorough and they did a great job. My game room is almost done!”


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Spray Foam

Spray foam insulation is the process of filling an area with a foam that adheres to the shape of its container.  This type of insulation is resistant to fire, rot, mold and pest infestation, making it suitable for both residential and commercial use.


Cellulose insulation is an environmentally friendly, low cost material that is made mostly from recycled newspaper. It has high thermal resistance properties and can save on energy costs when compared to other types of insulation.

Fiberglass/Mineral Wool Insulation

Fiberglass and mineral wool insulation serves as an air barrier because the individual fibers are too large to fit through cracks and voids that may have developed in an existing building envelope. Fiberglass and mineral wool insulation can block airflow.


The process of fireproofing is known as the field that deals with preventing or minimizing the spread of fire. It mainly focuses on protecting structural members from fire damage, including steel beams, steel trusses, and concrete components/elements.


Firestopping is the term used to define the products which are required for fire protection of structural systems. A void in a continuous barrier could allow a fire to spread throughout that void, thus compromising an entire building.  


Spray Foam Insulation

Spray foam is an air barrier which results in the elimination of drafts, hot spots and cold spots.

Cellulose Insulation

Cellulose insulation is a remarkable improvement over aging insulation in an existing building.

Financing Available

Interest Rates from 9.5% to 14.5%


Spray Foam Insulation

Go green in more ways than one, by saving energy as well as money on your monthly bill.

Cellulose Insulation

Our insulation services are designed to function within the needs of the facilities.

Firestopping & Fireproofing

Interest Rates from 9.5% to 14.5%